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In the present study,the influence of solute atoms together with dislocations at {1012} twin boundary(TB) on mechanical behavior of a detwinning predominant deformation in a Mg alloy AZ31 plate was systematically studied.The results show that a large number of {1012} twins disappear during recompression along the normal direction.Both the TB–dislocation interaction and TB–solute–dislocation interaction can greatly enhance the yield stress of the recompression along the normal direction(ND).However,the solute segregation at {1012} TBs with an intensive interaction with dislocations cannot further enhance the yield stress of ND recompression.The samples with TB–dislocation interaction show a similar working hardening performance with that subjected to a TB–solute–dislocation interaction.Both the TB–dislocation interaction and TB–solute–dislocation interaction greatly reduce the value of work hardening peaks during a detwinning predominant deformation.
In the present study, the influence of solute atoms together with dislocations at {1012} twin boundary (TB) on mechanical behavior of a detwinning predominant deformation in a Mg alloy AZ31 plate was systematically studied. The results show that a large number of {1012 } twins disappear during recompression along the normal direction. Both the TB-dislocation interaction and TB-solute-dislocation interaction can greatly enhance the yield stress of the recombination along the normal direction (ND) .However, the solute segregation at {1012} TBs with an intensive interaction with dislocations can not further enhance the yield stress of ND recompression. samples with TB-dislocation interaction show a similar working hardening performance with that with to TB-solute-dislocation interaction. But the TB-dislocation interaction and TB-solute-dislocation interaction greatly reduce the value of work hardening peaks during a detwinning predominant deformation.